ATMOS is an autonomous spectral measurement system designed to quantify atmospheric attenuation in solar tower plants in real time. The device combines reflective screens and optical telescopes that record the solar spectrum in the range of 400 to 1630 nm, applying analysis algorithms that discriminate scattering by aerosols and molecules from absorption produced by gases, such as water vapor. The results are weighted with the effective solar irradiance, generating precise spectral profiles that describe turbidity and its temporal evolution.

The system is offered through technological licenses and monitoring services, positioning itself as a key tool in sites with high atmospheric variability.

This type of information is essential for solar plant operators and designers, as it allows to reduce uncertainties in performance prediction, optimize daily planning, and improve long-term resource estimation.

ATMOS is in an advanced stage of development (TRL 7-8), with validation campaigns in real plants that have confirmed its temporal resolution, stability and ability to integrate into control systems. The technology is protected by an international patent. Link to international patent: WO/2020/021146. Link to relevant paper: Atmospheric attenuation measurement system for commercial solar plants based on optical spectrum analysis.